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scroll-snap-align

The scroll-snap-align property specifies the box’s snap position as an alignment of its snap area (as the alignment subject) within its snap container’s snapport (as the alignment container). The two values specify the snapping alignment in the block axis and inline axis, respectively. If only one value is specified, the second value defaults to the same value.

Syntax

/* Keyword values */
scroll-snap-align: none;
scroll-snap-align: start end; /* when two values set first is block, second inline */
scroll-snap-align: center;

/* Global values */
scroll-snap-align: inherit;
scroll-snap-align: initial;
scroll-snap-align: unset;

Values

none
The box does not define a snap position in that axis.
start
The start alignment of this box's scroll snap area, within the scroll container's snapport is a snap position in this axis.
end
The end alignment of this box's scroll snap area, within the scroll container's snapport is a snap position in this axis.
center
The center alignment of this box's scroll snap area, within the scroll container's snapport is a snap position in this axis.

Safari currently has the two value syntax in the wrong order, the first value being inline the second block. See bug #191865.

Formal definition

Initial value none
Applies to all elements
Inherited no
Computed value as specified
Animation type discrete

Formal syntax

[ none | start | end | center ]{1,2}

Specifications

Specification Status Comment
CSS Scroll Snap Module Level 1
The definition of 'scroll-snap-align' in that specification.
Candidate Recommendation Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
scroll-snap-align 69 79 68 No 56 11
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
scroll-snap-align 69 69 68 48 11 10.0

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-align